the study of the ancient world teaches emotional intelligence (EI): self-awareness (e.g., of your strengths/weaknesses, emotional states, and impact on others), self-regulation, social skill, empathy/perspective-taking.

studying leadership--in any way--is no substitute for *practicing* leadership. There is no example of a leader who can simply study for the role and then be good at it on the first try (e.g., boss, coach, teacher, statesperson, artist).